Discover the ATK DMK2 7.4L Chevrolet 454 marine engine with big block V8 torque and OE-style compatibility for GM-powered boats.
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Out of stock
The ATK Engines DMK2 is a remanufactured Chevrolet 454 cubic inch 7.4L marine long block engineered for 1996-1999 GM marine applications. Built around durable cast iron construction and marine-calibrated internals, this big block V8 is designed to deliver the torque required for larger cruisers, offshore boats, and performance-oriented marine platforms. || The DMK2 supports direct-fit installation into compatible GM marine drivetrains and allows transfer of existing marine accessories, ignition systems, and cooling hardware. Standard rotation configuration helps maintain compatibility with many OEM marine driveline setups used in sterndrive and inboard applications. || ATK remanufactures the DMK2 using inspected components and updated machining procedures intended for marine duty cycles involving sustained RPM operation and heavy vessel loads. This long block is ideal for replacing worn 7.4L marine engines while preserving OEM-style fitment and serviceability.
| Brand | ATK Engines |
|---|---|
| Model | DMK2 |
| MPN | DMK2 |
| Product Type | Marine Long Block |
| Material | Cast iron |
| Finish Color | Cast Gray |
| Dimensions | Not Published |
| Weight (lb) | Not Published |
| Load Capacity | Not Published |
| Drawer Count | Not Published |
| Drawer Type | Not Published |
| Lock Type | Not Published |
| Mount Type | Engine Mount |
| Installation | Direct replacement |
| Compatibility | 1996-1999 GM Marine |
| Use Case | Boat Repower |
| Warranty | Not Published |
| Country of Origin | Not Published |
| Series | Marine Engine |
| UPC | 653517086786 |
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